This fictional freeway is my take on the "Avenue of the Saints" corridor.
Although the corridor itself is being built as a mix of freeway and expressway,
my idea here represents what it might look like if it were to become full
Interstate. I chose I-37 as the route number as it fits the numbering
scheme and there is also precedent behind having two separate Interstates having
the same route number (i.e. I-84, I-86, I-88).